Do you know or do you understand how your risk assessment differs from the one done by the railways? You're looking strictly at historical data. One of my concerns was that we know specifically with respect to oil by rail that it's been increasing at quite a dramatic rate over the last six years or so.
Historical data is going to be of limited use, it seems to me, if the probabilities of an accident are going to go up because you have more cars carrying oil across this country. Is that possibly what the railway is looking at? Is the railway looking at it prospectively and saying that these are the trends and they need to account for higher probabilities because of the growth in oil by rail?
How does your risk assessment differ from theirs? Do you know that? Do you have that kind of information?